Here in the above code, you can see that I have created an express object as required and then I created a body-parse object which will be used for the posting/putting data into our API. Then I have created a port and get router of express and then created a route which will be our URL for API.
Now It’s time to write MySQL Connection code like below.

In the above code I have to get MySQL object via require and then I created a MySQL connection. You need to pass the credentials there for your MySQL Credentials. Then I have written following code to get Employee table data with our get API.

Here in the above code, You can see that I have written Route.get method which will be used to get All Employees from the MySQL database and then I have written a Select Query to query data with “Employee” table. Then I have put result data as Json with the response object.
Now we have to start this application with app.use like the following code.